IMAGE  EVALUATION 
TEST  TARGET  (MT-3) 


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CIHM/ICMH 

Microfiche 

Series. 


CIHM/ICMH 
Collection  de 
microfiches. 


Canadian  institu'^e  for  Historical  IVIicroreproductions  /  Institut  canadien  de  microreproductions  historiques 


Technical  and  Bibliographic  Notes/Notes  techniques  et  bibliographiques 


The  Institute  has  attempted  to  obtain  the  best 
original  copy  available  for  filming.  Features  of  this 
copy  which  may  be  bibliographically  unique, 
which  may  alter  any  of  the  images  in  the 
reproduction,  or  which  may  significantly  change 
the  usual  method  of  filming,  are  checked  below. 


D 


Coloured  covers/ 
Couverture  de  couleur 


I      I    Covers  damaged/ 


\/ 


U 


u 


Couverture  endommagie 

Covers  restored  and/or  laminated/ 
Couverture  restaurie  et/ou  pelliculde 

Cover  title  missing/ 

Le  titre  de  couverture  manque 

Coloured  maps/ 

Cartes  giographiques  en  couleur 


□    Coloured  ink  (i.e.  other  than  blue  or  black)/ 
Encre  de  couleur  (i.e.  autre  que  bleue  ou  noire) 

□    Coloured  plates  and/or  illustrations/ 
Planches  et/ou  illustrations  en  couleur 


n 


Bound  with  other  material/ 
Relii  avec  d'autres  documents 

Tight  binding  may  cause  shadows  or  distortion 
along  interior  margin/ 

La  re  liure  serrie  peut  causer  de  I'ombre  ou  de  la 
distorsion  le  long  de  la  marge  intdripura 

Blank  leaves  added  during  restoration  may 
appear  within  the  text.  Whenever  possible,  these 
have  been  omitted  from  filming/ 
II  se  peut  que  certaines  pages  blanches  ajoutdes 
lors  d'une  restauration  apparaissent  dans  le  texte, 
mais,  lorsque  cela  6tait  possible,  ces  pages  n'ont 
pas  kxh  filmies. 

Additional  comments:/ 
Commentaires  suppldmentaires; 


L'Institut  a  microfilm^  le  meilleur  exemplaire 
qu'il  lui  a  txh  possible  de'so  procurer.  Les  details 
de  cet  exemplaire  qui  sont  peut-dtre  uniques  du 
point  de  vue  bibliographique,  qui  peuvent  modifier 
une  image  reproduite,  ou  qui  peuvent  exiger  une 
modification  dans  la  m^thode  normale  de  filmage 
sont  indiquis  ci-dessous. 


D 
D 

n 

n 

n 
n 

D 
D 


Coloured  pages/ 
Pages  de  couleur 

Pages  damaged/ 
Pages  endommagies 

Pages  restored  and/or  laminated/ 
Pages  restaurdes  et/ou  pelliculdes 

Pages  discoloured,  stained  or  foxed/ 
Pages  d6colories,  tachet^es  ou  piquies 

Pages  detached/ 
Pages  ditachdes 

Showthrough/ 
Transparence 

Quality  of  print  varies/ 
Quality  inigale  de  I'impression 

Includes  supplementary  material/ 
Comprend  du  materiel  suppl^mentaire 

Only  edition  available/ 
Seule  Edition  disponible 

Pages  wholly  or  partially  obscured  by  errata 
slips,  tissues,  etc.,  have  been  refilmed  to 
ensure  the  best  possible  image/ 
Les  pages  totalement  ou  partiellement 
obscurcies  par  un  feuillet  d'errata,  une  pelure, 
etc..  ont  ^Xh  filmies  d  nouveau  de  facon  d 
obtenir  la  meilleure  image  possible. 


1 

s 
1 

V 

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ri 
ri 
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This  item  is  filmed  at  the  reduction  ratio  checked  below/ 
Ce  document  est  filmd  au  taux  de  reduction  indiqui  ci  dessous. 
10X  14X  18X  «v 

I  I        i        I        I     / 


12X 


16X 


20X 


24X 


28X 


32X 


Th«  copy  filmed  h«r«  has  b««n  raproducad  thanks 
to  tha  ganarosity  of: 

Medical  Library 
McGill  University 
Montreal 

Tha  imagaa  appaaring  hara  ara  tha  baat  quality 
possibia  eonsidaring  tha  condition  and  lagibility 
of  tha  original  copy  and  in  kaaping  with  tha 
filming  contract  spacificationa. 


Original  copias  in  printad  papar  eovars  ara  fflmad 
baginning  with  tha  front  covar  and  anding  on 
tha  last  paga  with  a  printad  or  illuatratad  impraa- 
sion,  or  tha  back  covar  whan  appropriata.  All 
othar  original  copias  ara  fiimad  baginning  on  tha 
first  paga  with  a  printad  or  illuatratad  impras- 
sion.  and  anding  on  tha  last  paga  with  a  printad 
or  illustratad  impraasion. 


Tha  laat  racordad  frama  on  aach  microficha 
shall  contain  tha  symbol  —^(moaning  "CON- 
TINUED"), or  tha  symbol  V  (maaning  "ENO"), 
whichavar  appliaa. 

Maps,  piatas,  charts,  ate,  may  ba  fiimad  at 
diffarant  raduction  ratioa.  Thoaa  too  larga  to  ba 
antiraly  inciudad  in  ona  axpoaura  ara  fiimad 
baginning  in  tha  uppar  iaft  hand  comar,  laft  to 
right  and  top  to  bottom,  as  many  framaa  aa 
raquirad.  Tha  following  diagrama  illuatrata  tha 
mathod: 


L'axamplaira  fiimi  fut  raproduit  grflca  A  la 
g4n4rositi  da: 

Medical  Library 
McGill  University 
Montreal 

Laa  imagaa  suivantaa  ont  tti  raproduitas  avac  la 
plua  grand  soin,  compta  tanu  da  la  condition  at 
da  la  nattat*  da  l'axamplaira  film«,  at  9n 
conformitA  avac  las  conditions  du  contrat  da 
fiimaga. 

Laa  axamplairaa  originaux  dont  la  couvartura  an 
papiar  aat  imprimte  sont  filmte  9n  commandant 
par  la  pramiar  plat  at  an  tarminant  soit  par  la 
darniAra  paga  qui  comporta  una  amprainta 
d'Impraasion  ou  d'illustration.  soit  par  la  sacond 
plat,  salon  la  cas.  Tous  las  autras  axamplairss 
originaux  sont  fllmte  an  commandant  par  la 
pramiAra  paga  qui  comporta  una  amprainta 
d'Impraasion  ou  d'illustration  at  an  tarminant  par 
la  darniAra  paga  qui  comporta  una  talla 
amprainta. 

Un  daa  symbolaa  suivants  apparaitra  sur  la 
damiAra  imaga  da  chaqua  microficha,  salon  la 
caa:  la  symbols  — ^signifla  'A  SUIVRE",  la 
symbols  V  signifia  "FIN". 

Laa  cartaa,  pianchas,  tablaaux.  ate,  pauvant  dtre 
fiimte  ji  daa  taux  dm  rMuction  diffirants. 
Lorsqua  la  documant  aat  trop  grand  pour  fttre 
raproduit  m  un  saul  cliche,  il  aat  fiimA  i  partir 
da  I'angia  sup4riaur  gaucha,  da  gaucha  d  droite, 
at  da  haut  9n  baa,  an  pranant  la  nombra 
d'imagas  n^cassaira.  Las  diagrammas  suivants 
illuatrant  la  m^thoda. 


1 

2 

3 

1 

2 

3 

4 

5 

6 

I'n 


Re 


^5" 


THE  RETROBULBAR  NEURITIS 
OF  YOUNG  ADULTS. 


Hy  c  vsi:v  a.  wood,  m  d., 

""•'"•>^'an.i.V,ms,totlu.Al..xianHos„i,al 


1.  (  iiicaL'ii ; 


Reprint    ,.o„    The  Oph.h.,„,c  Record,    N«hvi„.,    T.nn. 


N  \-^ll\  II. 1. 1:.     TKSN.: 

A.    K.    i.HK\     \    v,,s.    |1,„,K     KM,   ,|„U    I'KINTKH- 

by  J. 


c2b 


O 


Caxnj  A.    ]\\mi,  M.D. 


I  UK  KKTkOlU'IJiAR  NKURITISOI-  VOUNG  ADULTS. 

Wiill.ii     l.n      llif     0|)|itll;llliiic     l:..(ur.|     l.y 

CASKV    A.  wool  I,    M.D., 

rrofeos..!  of  Ophthalmology  in  the  rost.(;railuate  Me.Jic.l  School.  Chicago  ; 

Oculist  and  Aurist  to  the  Alexian  Hospital. 

Not  very  muoli  sj)!i('e  is  devotod  to  \\\o  ahovo  sultjoct  in  most 
tt'xt  Itonks  :iii(l  yet  there  are  few  disoascs  uf  -^renter  interest  to 
the  uiihthalniolo^Mst  That  the  nervous  humlles  su|)i)lic(l  to  the 
niaeular  region  should,  in  orbital  neuritis,  suffer  to  the  ahnost 
eonstant  exclusion  of  those  ^'iven  oft"  to  the  uiore  perijjheral 
parts  of  the  retina  is  eertainly  a  curious  fact. 

It  ini;;ht  also  he  ailded  that  although,  thanks  to  the  labors  of 
Sanielsolm,  Vossius  and  others,  we  know  a  very  great  deal  about 
the  relations,  course,  shape,  and  size  (relative  and  absolute)  of 
the  affected  fibre-bundles  and  are  thus  abl.«  to  ^-xplain  the  central 
amblyopia  and  scotomata,  no  rational  explanation  has,  so  for  as  I 
am  aware,  been  given  as  to  why  the  acute  morbid  process  should 
almost  invariably  first  shr»w  itself  in,  and  be  confined  to,  these 
particular  bundles.  N<»  one  reading  rhthoft"s  essay,*  wherein  the 
anatomy--normal  and  pathological  — of  the  macular  bundles  is 
thoroughly  diseus.sed,  can  say  that  either  their  |)osition,  their 
size,  their  nutritive  supply,  or  their  minute  structure  W(tuld, 
from  what  we  know  of  peripheral  neuritis,  render  them  more 
liable  to  acute  lullanimatory  attacks  than  any  of  the  surround- 
ing  bundles. 

The  writer  in  the  Tr(til<'  Com/ilil,  or  as  given   by    DeWecker 
and  .Masselon.l   jtoslulates  an  increasing   poverty   of  lymph   an<l 

*<ii;iil"f"s    Viiliiv,  III!  <  (plitiialiiioidific  l'..|.  xxxiii  1.  p.  .")«»<;;!, 
t.Maniitl  li*  tphtaiinolo;^!*'.  p.  (iSi. 


I 


^7 


IMr,l„lh„r  Nmrilu  of  lV,„,,y  .U„ll,.  3 

n''::,'.  ":,;:;•'"■■'""'■''  '■• ""■  i"-p'--^  "-••■■i  ti».  «.„„.,.  of  the 

""      "l^^ly    to   s,K.c..nil.    to   iMorl.iH,.    iMiluonces        If   fl 

of    „,,<,.„„„  t,,,«  r..a, ,,  „,i,,,i ,,, „„„„,  „„„„„|,"|,;; 

".     0  n.;u,-al  a.,  i,,  .,„.;,  ,  ,.„,„  „,^,  ^,  .^^ '  ^^  ^^^    '; 

Ir     (In.   ,.|,r„i,„.    I,„i„,  „.|„.,,.  ,.   t,„,,||      ,!,„■.  '    I '."''■ 

"  "";"'•■''  ;"-'"-■  -PPI.V  t..  .Ik H.al,„.  Iil„.„.  ,„,,,,' 

«,.lan,»  the  .s,.,,.r,.is,  „„.  i„„.,.»,i.i..„  .„,t„,,       ,,;■      „"^ 
..V,.  t„s„„  prol,fc.r..i„„  ,„.  „l,„t,.ve,-  „„e  ,„.v  t^  ,„  i,   r,      l„ 

tho  lc»»  v»8.ular  parts  of  ,„«a„8  cl.sc.»l,t.,-,.      Ii„  ,1,,,  .,;    ! 

2;l;f^-„„e,  bcwc,    tl„....   ,,u,„„o..  a,„l   „,„,.   „.,,|i,:t, 

Asi.lf  IV,,,,,  l!,i«  prniliarity  ac.to  oH.itul  ncuntis  .lilT,,-,  i„ 
ai".llH'ru.»p„tlVo,„  any  „.l„.,.  p,,ipl„.ral  nciriti.s  in  it.  pMe,- 
^■i-.'  for  you,,^-  a.  „lt»,  ,uo,,tly  fo„,ak.».  T,a„n,ati»,„  a,„l  p,  rulont 

".Im.on  apart,  the.  ,„„,,  c,,,,, cause,  are  tl„«e  of  tl,' .lisoasc 

.•  -Mvl„.r,.,  v„:    ,.xp,„„r,.   to  col.l  a„.l  w.t,  .liphtl.oria,  svplnln 
r  K.utual,.,,,,    ,l,c.  Hcut,.  exanthcuata,  tnoMstrual  »„ppr..,si'o;,    ,t..' 
I  ...  -vo,,  »l„.„  tl,„».are  ,..vcl,„le,l  a  v.ry  r..,p„.,al,lc.  porcma.-J 
ol  ca«.s  must  b,.  rclo^.at..,l  to  that  'lu.upius  grouM.l  of  our  i«u,M- 
aiici' — the  Kliopatliic  class.  ^ 

Siuuhuly,  the  .sy.upton.s-pain  i,.  the  re;.ion  of  th.  airectnl 
iKM-vo,  tnMlornrss  OM  pressure  or  on  ,uoti.,n  of  the  parts   fune-. 
t.onul  .leran.euuM.t,  son.etimes  rise  of  temperature,  sou.eti.ue. 
n<,t-corresp..n.l  to  tl.e  c^.neral  deseriptioii  of  inliaMuue.l  nerve 
<'..il.M^^s  ei.euhere.     For  instance,  when  the  diftnences  in  func 
t.on  between  the  seventh  an-l  optic   nerves  are  consi.lere.l   there 
i.s  a  close  resen.hhu.ce  in  ori^nn.  ,syn.pt.>nis.  course  an.I  termin-i 
tion  between  the  more   peripheral  forms  of  the  so  calle.l   Mcll's 
J.aralysis  an.I  an  ordinary  attack  of  acute  orbital  optic  neuritis 
Most   cases  of  acute  retrobulbar  neuritis  in  youn^^  people  .^et 
well.     I  am  indineil  to  believe  that    where  an  attack    termin-.U's 
in  general  atrophy  and  partial  (or  f.talj  blindness,  the  result  is 


«5S 


•*  Cntey  A,    Woal  M.T). 

due  to  pressure  upon  the  nerve  for  an  unusual  time,  and  is  asso- 
elated  with  dropsy  of  the  nerve  shcatli,  orbital  periostitis  or  with 
^irowths  within  the  orhit.  In  tliose  instances,  on  the  other  han«l, 
(constituting'  the  ^^reat  majority)  that  end  in  perfect  or  almost 
perfect  recovery,  the  morbid  process  has  either  been  confined  to 
the  body  of  the  nerve  itself,  or  the  accoinpsinyinr^  disease  in  the 
orbital  walls  or  in  the  walls  of  the  foramina  opening,'  into  the  orbit 
has  not,  to  any  extent,  disturbed  the  nutrition  of  the  delicate 
optic  bumlles.  The  following'  ease  presents  some  peculiarities, 
especially  the  implication  of  the  pupillary  and  inferior  rectus 
branches  of  the  third  nerve,  and  the  suspicion  of  hysteria 

E.  S.,  school  teacher,  tet.  2^],  consulted  me  May  'J^jnl,  (.f  last 
year.  She  presents  a  decidedly  auiemic  a|)pearance,  suffers  fr(»m 
constipation  and  some  loss  of  appetite,  has  not  now  and  has  never 
had  any  disease  prior  t(t  this  year  but  "muscular  rheumatism," 
sleeps  very  well,  always  menstruates  regularly.  Shortly  before 
seeing  me  she  ha.l  an  attack  of  la  grippe  (?),  i.  c,  suffered  from 
severe  pain  in  the  head,  which  soon  extcniled  to  the  right  eye 
and  affected  her  vision,  which  hitherto    had   been   very  good;  no 

fever  with  it.     R.  \.  ._:  r^^^  \\  L :.  '^^^  .      Ordered    m.x.  of    tr. 

ferri.  mur.  in  a  uiorning  saline  draught,  out  door  exercise,  plenty 
of  good  food  and,  as  a  concession,  to  the  muscular  '•rheumatism  " 
aforesaid,  medium  doses  of  sodic  salicylate  Kxamined  further 
the  bulbs  were  both  found  to  be  tender  on  pressure,  the  tender- 
ness extending  above  the  supra-orbital  notch  on  either  side,  and 
ocular  excursions  K.  are  decidedly  painful.  -Veiling  pains  occas- 
ionally in  the  eye-balls,  Scotomata  for  red  and  green,  and  white 
is  seen  as  grey  in  the  centre  of  right  field.  IJjerrum's  darkest 
II  type  seen  by  the  right  eye  at  4'  only.  The  left  also  shows 
diminished  light  sense.     May  2oth,  K.  V.  =    """      XL  " 

Daily  at  ").30  P.  M  ,  pilocarpine  mur.  gr.  i  with  copious  drinks 
of  hot  lemonade  and  retirement  for  the  night  This  dose  whs 
gra«lually   increased    until  gr.  ]  was  reached  on  .May  'IX.     Then 


■jii 
ill 


and  Jiiger  ij:  \ .  K. 


and  Jiiger  xvj.     June  L'nd. 


V.  L. 

Stopj»ed  sod.  salicyl.  and  began  Kl.  gr.  7^  t.  i.  d.  increasing  it 
gradually  to  20  grs.  Some  pain  in  eye-ball,  but  no  tenderness 
or  pain  on  motion.     Kerrated  malt,  beef  steaks,  milk,  cream  and 


Hdrohulcar  N.'urifh  of   )'.>»„,,  A.l„Ifs.  g 

<'Ws.  V  L  with  4-  .25  o  -I    7o  c  7a"  -  -■"     T 

.l-.i-ti,..,  n   •       •     u     ,  •"^•^•'    -  :,,.  Juno  Hth,  occiisional 

l»i  a  niontli  returned  with   V   R.      -"  .,,,,1    v   I     _    -" 
'^^^li...  vn.,  well.     8u.h.onl,,  ...1    wuiLa    warni:,;^,;:;.:,  Ihl 

'•'7'''  •'••^•'--•-n,..t  eye;-    There  i.s  narked  ;re«i.  oft 
cxt.   rectu.s;  the  left   ho,„onyn.o..s  i,na,e  stands  a  little  hi^h.; 

t  a..  li  .and  at  20',  with  head  in  prinKu-v  position,  is  ahont- Hon. 
other.     Ordered    KI.    .r.    xx,   and   a   saline  iron  nnxt.     Julv  '» 
B.>n.e  nnproven.ent.      Has  now  decided  nun.bness  in  tips  of  (h.".-' 
<'-•«  of    hoth  hands  (last  year  had  numbness  of  for.-head, ;  hut  tlu^ 
l'''i"7n«oaI   reflex  is  well   preserved,  and  eannot  discover  other 
nni.eafons  of  hysteria.     Ordered  candle  and  red-.h.ss  exercise 
Some  nausea.     .July  22.    IWsis  mueh  improved,  hut  symptoms 
o    neur.t.s  are  now  well  shown  in  left  eye  ,V  ^-..- )  with  n.ark- 
e.lunprovcmentinri^ht(V.._-,      IMister    in  "hoth     temples 
•■^'P^>"t-1  several  times.    Klix.  pepsin,  his.  and  strvch.  after  m.^als' 
Stopped    KI    and    iron  mixture.      J,,|y   2:}.     Patient    now   sees 

only  ^,^,  L,and  R    ^IL  _.     Much    pain.  1    cannot    di^tin.M.ish 

.".y  letters  of  Uj.rrun.  at  any  distanc..  with  either  eye.  Next 
'l';y  N  l  -  fi..;;ersat  4'.  1,.  a  week  he;;an  KI  in  lar^e  dose. 
with  plentiful  additions  to  .lii-t  Au;,'.  1.  V  R  _  ^"  .  y 
I^=--,:l'.  Nausea  and  vomitin-,  //->/  after  food.  Some  .sup  ra- 
"'■'»'^=''  P-'i".  Syrup  hypophosphites.  Au;,'ust  10,  V  L  =  ^;;  ; 
\  li  ;';  .  Appetit.  and  sleep  good,  hut  pains  in  arms  and  le''".s- 
weight  IDS  ||,s.  "  ■ 

On  Oct.  20th,  patient  weighed  12.'J  lbs.  V  R  =z  f  _V  L  ---= 
'''it'HTcye  J.  ij  slowly,  hut  with  -f  O.To  /.7.v.,""j  j  slowly 
No  scotoM.ata,  and  light  sen.se  fair.  Is  looking  ami  feeling  we'll 
and  had  s,,  continued  several  months  afterwards  when  she  rmsse.l 
fV'.m  my  observation.  There  were  absolutely  no  fundus  changes 
throughout. 


.'II 
I'll  • 


1 


30 


H 


Right 


('<ix»'!l  A.    Woo.l,   .}/,/}. 

I  It  r 


.'III  1 1 


^'^^  Fig.  2. 

The  lu-coinpaiiviii;;  ficMs  wnr  taken  ..('  tla*  R  K  on  May  J.'itli 
'1  ..f  ,|h.  Irft  .lulv  -.VJnl,    Til,,  whif.  uhjrrt,  10  mm.  s.,uar(.,  was 
.  seen  as  -ivy    in  tlio  left  ticM  and  colors  were   not  criTctl v   j.cr- 
•  eivi'.l    in    about    the    same    area.     Tlie   ri;,'l.t   lie). I    showcl   an 
alisoliitc  scotoma,  while  the  color  scotomata   for  re<l   an<l  ;,'rrcii 
extemleil  ahout  10     farther  out. 

I  am  <|uite  sceptical  ali-mt  the  effects  of  treatment  upon  the 
v-ry  acute  "idiopathic"  examples  of  retroluilhar  neuritis,  j 
lliiiik  that  most  uf  these  ca.se.s  run  their  course  to  reeoverv 
uiiaflectcj  l.y  (lru;:s  or  the  absence  of  .lrii;;.s.  The  simple  cases 
in  youiiLT  a.lult.s  recover,  n»!,nx  i<„lf,ix  :  on  the  other  hand  patients 
above  .'.0,  or  those  that  exhibit  orbital  periostitis,  rheumatic 
thickening',  neoplasms  resisting:  potassic  ioilide,  or  much  ion-' 
continucil  orbital  effusion,  ojily  partially  recover  or  become 
practically  Mind  from  secondary  atroj)liy. 

A  cure  by  drii;:s  of  a  simple  acute  orbital  neuritis  be|(»n<^s  to 
the  same  I'atet^ory  as  that  of  the  accomodative  paresis  which  so 
often  loilows  diphtheritic  poisonin;:.  In  a  journal  dev(»ted 
principally  to  observations  made  by  our  brethein  of  the 
hom.copathic  belief,  was  not  Ion;.;  a;,'o  published  a  Ion'  and 
circumstantial  account  of  such  a  "cure"  performed  in  »/./  /m-ks 
by  flic  aid  of  heroic  dilutions  of  rhiis  and  other  potent  remedies  ! 
Doubtle>s  his  brother  of  the  re;.'ular  s(dio(d  would,  in  a  similar 
ease,  attack  the  disease  with  ///.■<  incantations  but  he  would 
probably  not  lie  so  certain  i>\'  tlieir  positive  efficacy  nor  have 
rushed  into  jirint  about  it  all. 


i 


^ 


A> 


31 


f 


K 


iji-.  si,,i„.,-,'„i-  ,i,i, ,.,-,;, ;  "'■" ""-  '■'"'•'•"tiv  n.r<T,-,.,i  ,„  ,„..  1,^, 

Justawrek  „..„  (\|,r,.|,  -i,     71,       '""" ''""!'«'•  •"■  amokor. 
I>lin,l  ,.„  ,l,„i  ,         "'»'■•«"  an,   lar..,-  ,„„il  l„.  .,„.,,„„.  ,,;i„ 

«■»«  f.-veri,i,  ;,;,''  r'n  •""  -'"•"•"'■^i'^''  p-"^* i 

t"m»  w..,-,.  s.ill  present  wluM,  I  saw    hi,,,          n  ll,,^  ■"!'• 

-mbolis „l  „,C,  I,      ,,,;"" '"•    '^'""' ••vi'l-.cc.,s'„r 

':'I>'"-"V  outline  w.,s  obsorvo.l  on  tie  nasul  si,    '  7   ly 
••'^'"n    o'-tl.in,,s    eontinu.l  fo.  six    wook l      ,,  1:  •.    Tr'" 

--'•;-       ^;'-''--l -alin..  fixture  contai,nJS.::so'KI 
t^.oet.n.a...   nu-a,.   toWin.reasea.,.„Ll^^^^ 

^i.>-r';,.e:n::;r^i:r;;:;;tr 

-'".v.  Apr,  K  fi...er.-,      '    nl      '  ^  "  fi"^'ers  at  O"  ocoentri- 

'i^'l'i-     Apr   ,;  r.7;'''V!"'';^\'"'I'^«"^-^"^'^«'^'''^^  No  color 

'•>'t    per,plu.n.l   vision  goo.l.     Apr  2->    V^-^   %.. 
/>/^//;-  *'  *^'-  — '   *    m'     (i5ce  perimeter 


/^/S^  6 


''S  't- 


3:i 


n  (W//  .1.    irood,  MD. 

chart).  Apr.  28,  V   ^J^  and  aoiiic   wonis  of  Jii^'cr  x 
Klo.'tiioity.     May   3.  V  ^;  _«n,l  .l.x.    May  0,  J.ij  and   \ 
May  10,  with  sph.  -f-  1.  1)  J.i  and  \'    ■*'  —      I 


ii  at   125  cm 


In 


Tl 


Iniproviiijj;  diii 


ii-  pennu'tric  nioasurcMncnts  wtM-o  both  takon  for  white,  in 
tho  final  trial  red  and  j;reen  wtMo  not  correctly  made  nut  in  an 
area  twice  as  lar^^e  as  the  scotoma  for  white  which  was  not  (juite 


ibsolutt 


(seen  a.s  grey)  towanls  the  na.sal  side 


I 


I 


